PSLE The graph shows the height of a plant from March to July.
- What was the height of the plant in July?
- During which period did the plant have no change in height? Give your answer in numbers. (Eg Jan to Feb = 1 to 2)
(a)
Height of the plant in March (3) = 11 cm
Height of the plant in April (4) = 20 cm
Height of the plant in May (5) = 20 cm
Height of the plant in June (6) = 31 cm
Height of the plant in July (7) =
43 cm Height of the plant in July (6) = 43 cm
(b)
To find the greatest increase, look for the steepest increase in the line graph.
To prove:
Increase in height from March (3) to April (4) = 20 - 11 = 9 cm
Increase in height from April (4) to May (5) = 20 - 20 =
0 cm Increase in height from May (5) to June (6) = 31 - 20 = 11 cm
Increase in height from June (6) to July (7) = 43 - 31 = 12 cm
Period which the plant grew the least = April (4) to May (5)
Answer(s): (a) 43 cm; (b) 4 to 5